<template>
	<div>
		<!-- 面包屑导航 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>数据统计</el-breadcrumb-item>
			<el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片区域 -->
		<el-card>
			<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
			<div id="main" style="width: 750	px;height:400px;"></div>
		</el-card>
	</div>
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'

export default {
	data() {
		return {
			//需要合并的数据
			options: {
				title: {
					text: '用户来源'
				},
				tooltip: {
					trigger: 'axis',
					axisPointer: {
						type: 'cross',
						label: {
							backgroundColor: '#E9EEF3'
						}
					}
				},
				grid: {
					left: '3%',
					right: '4%',
					bottom: '3%',
					containLabel: true
				},
				xAxis: [
					{
						boundaryGap: false
					}
				],
				yAxis: [
					{
						type: 'value'
					}
				]
			}
		}
	},
	created() {},
	async mounted() {
		//在mounted生命周期函数中初始化echarts实例.（只能等页面上DOM结构渲染完毕才能初始化echarts）基于准备好的dom，初始化echarts实例
		// 3.1
		var myChart = echarts.init(document.getElementById('main'))
		const { data: res } = await this.$http.get('reports/type/1')
		if (res.meta.status !== 200) {
			return this.$message.error(res.meta.msg)
		}
		// 3.2
		const result = _.merge(res.data, this.options)
		// 3.3
		myChart.setOption(result)
	},
	methods: {}
}
</script>
<style lang="less" scoped>
</style>